Sam's build thread

[metalhead]

Yeh, I just have two lengths of square steel bar, maybe 15mm square? With the string points marked on them and string permanently tied to them, I just roll them up string and all and stand them in the corner of the garage. Set them up with jackstands and some bits of timber to shim the heights. Not as quick and easy as the toe plates obviously, but it's pretty quick to setup and pack up again.

[sambb]

ah yeah even better. I'll do the right side soon enough to get those toe angles right and I also need to switch it over to a DBA T2 disc as well. Still so ****ty at those muppets. Like that day last year when I just couldn't get the thing turned despite so much effort and scratching my head chasing other problems when really I was running with toe in all along.
There's a VW day down at Wakefield in May apparently, sort of replacing the usual DubNats at SMSP south circuit so if I still have my silly OE turbo on at that stage, it'll be interesting to see how the car goes again now that it'll hopefully be properly sorted chassis wise. It'll still have second hand 3 year old + tyres but it'd have to go better than last time.

I just need to find one more 215/50/15 second hand somewhere and I'll have a full set, which you'd think would go better than the 205's mediums I had on last time. If they fit I'd love to take my beat up set of soft 195's on another pair of rims for the rear and see if a one lap wonder/time attack style can generate a quicker lap time with front 215 mediums and rear softs than a full set of 215 mediums.

[Sydneykid]

I'll see if I can find you a not terrible 215/50/15, I'll let you know. Have you got any 16" wheels yet, there's a couple of 225/45/16's that would do you for few meetings.

Cheers
Gary

[sambb]

That'd be unreal Gary. No the only 16's I have are the OE 16 x 6.5's. A 225/45/16 has a slightly narrower section width than a 215/50/15 doesn't it, but despite that I always figured the OEM 16's would still be too narrow for 225's They are definitely heavy that's for sure, I think 9.5kg from memory so 20ish with tyres.

[Eddy]

Hoyhoy.

My figures show that the 225/45/16 is about 10mm wider than the 215/50/15.
And you do need wider rims than the standards.
I went through 3 different width rims before finding the right one for the 225/45/16's, which ended up being 8".
The 225/45/16 is some controlled size tyre, can't remember what class.

[sambb]

Long time no hear Eddy. Good to see you're still lurking in the scene. Oh ok I thought there was a weird quirk with these where the higher aspect ratio of the 215's translated to a wider face despite the 215 designation but I probably got that wrong. Yeah I remember you ran those and yeah they are much more common than the 215/50 profile on the second hand market. I went with 15's initially because there were just no light motorsporty 16's getting around second hand that I could actually afford, and that has kind of locked me into a tyre size niche thats not as popular as 225/45/16.

[Sydneykid]

Hoyhoy.
My figures show that the 225/45/16 is about 10mm wider than the 215/50/15.ximum allowed rim doamter)
And you do need wider rims than the standards.
I went through 3 different width rims before finding the right one for the 225/45/16's, which ended up being 8".
The 225/45/16 is some controlled size tyre, can't remember what class.

The 225/45/16's work OK on a 7" rim but an 8" is marginally better.
The 225/45/16 in the A050 control tyre is the common size for early Commodores in Improved Production (16" is their max allowed rim diameter).
Tyre sizes (as stamped on the sidewall) are not always a good guide to actually dimensions. For example in A050's the 225/50/15 is actually 237 mm wide and the 225/45/16 is 224 mm wide.


Cheers
Gary

[Eddy]

The 225/45/16's work OK on a 7" rim but an 8" is marginally better.
The 225/45/16 in the A050 control tyre is the common size for early Commodores in Improved Production (16" is their max allowed rim diameter).
Tyre sizes (as stamped on the sidewall) are not always a good guide to actually dimensions. For example in A050's the 225/50/15 is actually 237 mm wide and the 225/45/16 is 224 mm wide.


Cheers
Gary

Hoyhoy.

Sam is comparing *215/50/15* to 225/45/16, I still come up with the latter being 10mm wider.
Actually on the calculator I'm using it has 225/50/15 & 225/45/16 as being the same width.
May be the AO50 is different for some reason.

[Sydneykid]

Hoyhoy.
Sam is comparing *215/50/15* to 225/45/16, I still come up with the latter being 10mm wider.
Actually on the calculator I'm using it has 225/50/15 & 225/45/16 as being the same width.
May be the AO50 is different for some reason.

In the A050 the 215/50/15 is actually 229 mm wide and I just measured a 225/45/16 and they are 227 mm wide. Which is what they are quoted as on the Yokohama tyre chart;
Advan A050 (Semi-Slick)

So the 225/45/16 is actually 2 mm narrower than the 215/50/16.

In A050's the 50 series (and higher) tend to be baggy in the sidewall which inflates their overall width. Under 50 series they are less baggy so the overall width is more in line with their tread width.

Cheers
Gary

[sambb]

I'm going to get this kind of driver coaching next time I'm on a circuit. What do you reckon he'd charge:

https://www.youtube.com/watch?v=_EaaygyhtVs